System:
CPU: Core i7 6700K
Water Cooling: CoolerMaster Nepton 280L
RAM: 32GB Corsair Dominator Platinum DDR4
MB: MSI Z170-A XPower Titanium Edition
Video Card 1: EVGA GTX 980 Ti SC+ ACX 2.0+ Backplate
Video Card 2: EVGA GTX 980 Ti SC+ ACX 2.0+ Backplate
Sound: SoundBlaster X-Fi Titanium HD
Case: Cooler Master Storm Trooper loaded with Noctua Fans
PSU: Antec HCP Platinum 80+ 1300W
Lighting: NZXT Hue+
SSD: Samsung 950 Pro NVME 512GB
Extra Storage: Drobo 5N NAS
Optical Disk Drives: Blu-Ray and DVDRW
Mouse: Corsair M65 PRO RGB
Keyboard: Corsair STRAFE RGB with MX Brown Switches
Monitor 1 28" Acer XB280HK 4K with Gsync
Monitor 2: 28" Samsung UE590 4K with Freesync
Monitor 3: 28" Samsung UE590 4K with Freesync
Monitor 4: Vizio M50-C1 50" 4K
Speaks: Corsair SP2500 2.1
Headset: AKG Tiesto K267
OS 1: Windows 7 Pro 64bit
OS 2: Windows 10 Pro 64bit

I also have retro systems that I'm into to play all of the old school games I've been collecting since 1990.

Pentium 233Mhz with Matrox G200 and 3dfx VooDoo1 (DOS 6.22 / Windows 3.11 / Windows 98SE)
Pentium 3 1.4Ghz with Matrox G400Max and 3dfx VooDoo2 SLI (DOS 6.22 and Windows 98SE)
Pentium Core2Duo E6800 with Geforce 6800Ultra (Windows 98SE)
AMD64 X2 4200 with 2 x GTX 560TI SLI (Windows XP 32bit and 64bit)
Pentium Core I7 920 with 2 x GTX 680 SLI (Windows XP 32bit and Windows 7 64bit)